In Uzbekistan, as well as in many other countries of the world, pumping units operate in parallel into a common pressure pipeline at some pumping stations of the irrigation system. This was done mainly to save on the capital costs of the pipeline. Analysis and hydraulic calculation of the existing large irrigation pumping stations with pumping units operating in parallel showed that at some of them the conditions of parallel operation of pumping units were impaired. As a result, a negative hydraulic process arises, in the form of self-induced vibrations of the water flow in the pipeline, which leads to various damage and deformation of the pressure pipeline and pipeline supports. The calculations showed that with different modes of pumping units operating together, the power consumption at the Amu-Bukhara-1 and Namangan pumping stations, accounting for one unit increases by 0.72 ... 6.53%, and at the Amu-Bukhara-2 and Amu-Zang-2 pumping stations, this index, on the contrary, decreases by 0.32 ... 1.67%. Therefore, a properly selected operating mode of parallel-connected pumping units will lead to a decrease in operating costs, i.e. decrease in the prime cost of raised water.

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As world practice shows, one of the most important criteria that significantly affects the development and growth of crops during their vegetation is the optimal moisture content in the basal layer. One of the main elements necessary to maintain the water regime of the soil at the optimal level is the determination of several determining parameters, which include, for example, setting the humidification depth of the basal system of a certain culture and maintaining a given moisture level at this depth. The frequency of watering is determined by the depth of humidification: as the depth of humidification increases, the frequency of watering decreases. For the most accurate determination, as shown by many years of experience in international cooperation, it is necessary to preliminary simulate the dynamics of soil moisture. This significantly reduces the costs associated with irrigation of the soil, while significantly improving the efficiency of irrigation. The role of modelling as an effective tool for pre-monitoring the implementation of soil irrigation on the scale of any market entity is growing annually, due to the need to ensure sustainable balanced agricultural development (Devika et al. J Rural Dev 36:293-310, 2017). At the same time, international cooperation in the exchange of experience and advanced information technologies plays an important role (Maksimov et al. Proceedings of the 30th international business information management association conference, IBIMA